What is the main zip code for Concord, California?

94521 is the most populous Concord ZIP code in Census data with about 41,092 residents.

What is the area code for Concord, California?

Concord, California uses area code 925.

What time zone is Concord, California in?

Concord, California is in the Pacific Time Zone.

Concord, California Zip Codes

Q: How many zip codes does Concord, California have?

Concord, California has 8 zip codes in this directory: 4 standard delivery ZIPs and 4 PO Box or unique ZIPs.

Q: What county is Concord, California in?

Concord is in Contra Costa County, California.

📍 Concord is in Contra Costa County, California with 8 zip codes; the most populous is 94521.

City

Concord

County

Contra Costa

Zip Codes

Area Code

925

Concord is a USPS city name in Contra Costa County, California with a Census population of approximately 126,240 across its ZIP codes. Contra Costa County as a whole has 53 ZIP codes in this directory. Below you'll find every zip code serving Concord with population, income and home value, a map, and the city's affordability profile.

Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).

All Concord Zip Codes

ZIP Code	City	County	Population	Median Income	Median Home	Details
94518	Concord	Contra Costa	28,287	$111,186	$783,000	View →
94519	Concord	Contra Costa	20,162	$118,587	$662,400	View →
94520	Concord	Contra Costa	36,699	$77,927	$571,400	View →
94521	Concord	Contra Costa	41,092	$121,368	$778,300	View →
94522	Concord	PO Box ZIP	—	—	—	View →
94524	Concord	PO Box ZIP	—	—	—	View →
94527	Concord	PO Box ZIP	—	—	—	View →
94529	Concord	PO Box ZIP	—	—	—	View →

Concord at a Glance

Residents (ZIPs with data)

126,240

Median household income

$114,887

Median home value

$720,350

Price-to-income ratio

6.7

Median rent

$2,238

Owner-occupied

70%

Bachelor's degree+

36%

Poverty rate

9.2%

Concord has 8 ZIP codes in this directory: 4 standard delivery ZIPs and 4 PO Box or unique ZIPs that carry no resident population in Census data. The 4 ZIPs with published Census housing data cover 126,240 residents, the largest being 94521 with 41,092 people.

The median ZIP in Concord has a household income of $114,887 and a home value of $720,350, a price-to-income ratio of 6.7, in line with the 6.7 California ZIP median. Affordability ranges from 94519 at a ratio of 5.6 to 94518, where the median home is $783,000. The highest median income is in 94521 at $121,368. Median rent across these ZIPs is $2,238 a month.

70% of households in the typical Concord ZIP own their home (statewide ZIP median 64%). 36% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 9.2%, below the 10.8% statewide ZIP median. Overall density is about 4,265 residents per square mile across 30 square miles of ZIP land area.

Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 California ZIP Code Affordability Report.